import java.util.Scanner;

public class Test {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        String arr = scanner.nextLine();
        char[] arrys = new char[arr.length()];
        arrys = arr.toCharArray();
        for(int i = 0; i < arrys.length; i++) {
            if(arrys[i] != ' ') {
                arrys[i] = (char)(arrys[i] - 3);
            }
            System.out.print(arrys[i]);
        }

    }
}
